Timeline for all types of items produced by
SystemSoft Corp. [Japan]

Year	Items
1981	1
1982	1
1983	4
1984	11
1985	5
1986	9
1987	26
1988	19
1989	35
1990	23
1991	31
1992	25
1993	10
1994	3
1995	8
1996	6
1999	2
2001	1
2002	1
2003	1
2005	1
2013	1
2014	2
2015	1
2017	1
2018	1

229 items with a valid date were considered for this timeline (78.69% of the total)
62 items with an invalid date.

Help us in our quest to find exact dates for:

198?: 45 items.
199?: 15 items.
200?: 1 item.
201?: 1 item.